Multi-layer Chamfering Bits Pagoda Drill VDH-005

Multi-layer Chamfering Bits: Precision Hole Enlargement for Stone & Tile

The Multi-layer Chamfering Bits revolutionize drilling and edge finishing with their 3-in-1 diamond-coated layers, designed to chamfer 20mm, 35mm, and 50mm holes in granite, quartz, marble, and ceramics. Featuring brazed diamond technology and universal thread compatibility, this tool delivers chip-free precision in both wet and dry conditions, eliminating the need for multiple bits.

Core Innovations

1. Triple-Layer Efficiency

   • 20/35/50mm Diamond Segments: Expand holes or bevel edges in a single pass – save 70% setup time vs. traditional step bits.

   • Brazed diamond clusters (40# grit) ensure aggressive cutting without edge chipping.

2. Industrial-Grade Durability

   • Vacuum Brazing Process: Bonds diamonds 3x denser than electroplated bits – lasts 500+ holes in granite.

   • High-carbon steel body resists deformation at 3,000 RPM.

3. Universal Compatibility

   • Thread Options: M10/M14/M16/5/8″-11 – fits angle grinders, CNC machines, and handheld drills.

   • Wet/Dry Operation: Water cooling for heat-sensitive materials (e.g., glass); dry mode for on-site tile adjustments.

Technical Specifications

Why Professionals Choose This Tool

• Time Savings: Chamfer 50mm holes in 30 seconds – 4x faster than single-layer bits.

• Cost Efficiency: 1 bit replaces 3 traditional tools – save $120+/project.

• Safety: Anti-kickback design reduces operator fatigue by 50% (ANSI B212.15 certified).

Step-by-Step Workflow

1. Select Thread: Install M14 bit on angle grinder (most common for stone work).

2. Set Depth: Adjust grinder guard to target layer (e.g., 35mm for sink faucet holes).

3. Cooling Choice:

   • Wet: Connect 0.3L/min water flow for marble/glass.

   • Dry: Use for quick quartz adjustments.

4. Chamfer: Apply steady pressure – let diamonds grind at 15°-20° angle.

5. Switch Layers: Rotate bit to access 20/35/50mm segments as needed.

Applications

• Countertop Installation: Perfect 35mm holes for undermount sinks in quartz.

• Tile Contracting: Bevel edges on 60x60cm porcelain tiles for seamless grout lines.

• Glass Artistry: Polish 20mm holes in stained glass without microfractures.

• Monument Crafting: Engrave clean 50mm openings in granite memorials.

Pro Tips

• Speed Control:

  • Granite/Quartz: 2,500-3,000 RPM (dry).

  • Glass/Marble: 1,500-2,000 RPM (wet).